2005240120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3856231}}^1$

素因数の和:3856255

約数の個数: 32

約数和(自身を含む): 4858852320

約数和(自身を除く): 2853612200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 3856231, 7712462, 15424924, 19281155, 30849848, 38562310, 50131003, 77124620, 100262006, 154249240, 200524012, 250655015, 401048024, 501310030, 1002620060, 2005240120]

約数ペア:

[(1, 2005240120), (2, 1002620060), (4, 501310030), (5, 401048024), (8, 250655015), (10, 200524012), (13, 154249240), (20, 100262006), (26, 77124620), (40, 50131003), (52, 38562310), (65, 30849848), (104, 19281155), (130, 15424924), (260, 7712462), (520, 3856231)]